[UntilThen]

M51 is a no brainer at the price now. It's my 2nd dac next to Yggdrasil.

 

[Lvivske]

Question about the outputs: if I use the XLR out into an RCA input, is that any sort of improvement? Ive seen adapters mentioned in this thread but most talking about preferring balanced were into an XLR input

or are both outputs on the M51 identical in quality

update: okay went and bought an XLR-RCA cable to test it into the same amp and yeah, sounds identical on a quick pass

 

[gonzfi]

Could someone clever advise why the 2go/2yu doesn't play nicely with a NAD M51 dac? Sound is muffled and scratchy through USB and through coax. Both units work fine in other scenarios so I dont think anything is faulty.

 

[vlach]

Could someone clever advise why the 2go/2yu doesn't play nicely with a NAD M51 dac? Sound is muffled and scratchy through USB and through coax. Both units work fine in other scenarios so I dont think anything is faulty.

Are you running the M51 at 0dB? If so try reducing the output to -3dB or -6dB.

 

[gonzfi]

Ggood shout. I think I'm running it at +10!!

 

[gonzfi]

Are you running the M51 at 0dB? If so try reducing the output to -3dB or -6dB.

This solution solved the issue. Many thanks.

 

[vlach]

This solution solved the issue. Many thanks.

Glad i could help

 

[vlach]

This solution solved the issue. Many thanks.

While you're at it, check the polarity setting, in my case i get slightly more bass impact with the reverse setting selected.

Edit: ^This could vary depending which firmware you're running. I'm on 1.39

 

[Lvivske]

I didnt get that, the opposite, but I find that it changes the direction the bass is coming from (ie, for me it moved more off to the sides, albeit slightly less impactful), but perhaps depending on what you're playing it through, changing the polarity puts it in a 'stronger' spot in your personal frequency response

 

[vsem ban]

Hi all! Please help me find firmware 1.39.

...Thanks, I already found it.

 

[steph88]

Good morning,I am looking for software version 1.41, can someone help me please?

 

[jeenam]

M51 firmware at https://drive.google.com/drive/folders/110oUGfAQFRPy-hFBfXpWUuOlbOl0rYGn?usp=sharing

 

[steph88]

M51 firmware at https://drive.google.com/drive/folders/110oUGfAQFRPy-hFBfXpWUuOlbOl0rYGn?usp=sharing

Great, thank you very much jeenam.I will be able to try the versions 1.41 and 1.39.

 

[Lvivske]

is there any difference? I only read about them fixing the volume bump

 

[Lvivske]

side note since hey, this happened and apparently some people still follow this thread

but my M51 is black now (i didnt like the grey, and it came scratched so w/e, now it matches all my other gear)

I also am a psycho so I recapped the internals - out with the cheap chinese, in with the audio note & nichicon

and then I destroyed 2 polystyrene caps in the process and had to replace them with some NOS Siemens ($2, whatever) so thats why there's funky red looking caps in there now

(I don't recommend anyone do this, I was just having fun, then a nightmare, then fun again)